The Asaoka method revisited

G. Mesri, N. Huvaj-Sarihan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The Asaoka method is a useful tool for interpreting and extrapolating field settlement observations. The graphical procedure to estimate end-of-primary (EOP) settlement and coefficient of consolidation is simple, however, mathematical deduction of the method by Asaoka is not. The Asaoka method is deduced here using simple algebra for one-dimensional compression with and without vertical drains. The Terzaghi theory of one-dimensional consolidation, and the Barron equal strain theory of consolidation modified to include effects of smear, well resistance and vertical water flow through soil, are used. The Asaoka graphical procedure is applied to settlement observations at Skå-Edeby test area I with three spacings of sand drains and area IV without vertical drains. The Asaoka method is not recommended for predicting secondary settlement.

Original languageEnglish (US)
Title of host publicationProceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering
Subtitle of host publicationThe Academia and Practice of Geotechnical Engineering
Pages131-134
Number of pages4
DOIs
StatePublished - Dec 1 2009
Event17th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2009 - Alexandria, Egypt
Duration: Oct 5 2009Oct 9 2009

Publication series

NameProceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering
Volume1

Other

Other17th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2009
Country/TerritoryEgypt
CityAlexandria
Period10/5/0910/9/09

Keywords

  • Asaoka
  • Coefficient of consolidation
  • Settlement
  • Vertical drains

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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